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Ber [7]
2 years ago
7

Simplify: -3x2 + 5x -22 + 4x2 - 9x

Mathematics
1 answer:
DiKsa [7]2 years ago
5 0

Answer:

B

Step-by-step explanation:

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Demi has 221 songs on her phone. The songs take up 884 megabytes of storage . Each song takes up same amount of space . How many
sveticcg [70]

Answer:

540 megabytes

Step-by-step explanation:

We will first need to find out how much space a<em> singular song</em> will take up. We will do this by <em>the storage taken up (884) by the number of songs she has:</em>

884 / 221 = 4 mb taken up per song

Then we want to find out how many megabytes <em>135 of these songs take up</em>, so we will multiply the <em>mb taken up per song (4) by the number of songs we want to find (135)</em>:

4 x 135 = <em>540 megabytes</em>

<em />

<em>Edit: made a mistake in my original answer, apologies!</em>

7 0
3 years ago
Can someone please explain how the answer is D
Kitty [74]

Step-by-step explanation:

Because the length of ST is calculated using pythagorean theorem:

{c}^{2}  =  {a}^{2}  +  {b}^{2}

Where the square of the hypotenuse is equal to the sum of squares of the other two sides of a right triangle. In this case, the hypotenuse is ST and the other two sides are distances between S and T over the X and Y axis. Those are easily calculated:

x =  |sx - tx|  \\ y =  |sy - ty|

Where x is the distance between S and T over X axis and Y distance over Y axis, sx and tx are X coordinates of S and T, sy and ty are Y coordinates of S and T.

Using that formula, you get that y = 17 and x = 8.

Back to the pythagorean theorem, if we put those number in the formula of the pythagorean theorem, we get something like this:

{c}^{2}  =  {x}^{2}  +  {y}^{2} \\  {c}^{2}  =  {8}^{2}  +  {17}^{2} = 64 + 289  \\  {c}^{2}  = 353 \\ c =  \sqrt{353}

And finally, the correct answer is in fact 353.

3 0
3 years ago
A tabletop in the shape of a trapezoid has an area of 6,550 square centimeters. It's longer base measures 115 centimeters, and s
mrs_skeptik [129]
0.5h(115 + 85) = 6550
0.5h(200) = 6550
100h = 6550
h = 655 cms

height is 655 cms

5 0
3 years ago
What kind of financial institutions does the Office of Thrift Supervision oversee?
xxTIMURxx [149]
Savings and Loan Institutions.
5 0
3 years ago
Mary has 10/12 of ube cake she shared 7/12 to ana. what part of cake was left to mary?​
kow [346]

Answer:

3/12

Step-by-step explanation:

10-7 is 3, so its 3/12.

5 0
3 years ago
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